書誌事項
- タイトル別名
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- SIMULATION OF EARTHQUAKE GROUND MOTION USING 3 DIMENSIONAL UNDERGROUND STRUCTURE MODEL DEDUCED FROM GRAVITY ANOMALY
- ジュウリョク イジョウ オ モチイタ 3ジゲン ジバン モデル ノ コウチク ト ジシンハ デンパ シミュレーション
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This article presents a technique to build 3 dimensional underground structure for earthquake ground motion estimation directly from gravity anomaly. The local gravity anomaly is evaluated by subtracting the regional gravity anomaly from the Bouguer anomaly, and the depth of irregular shaped bedrock is regressed assuming linear dependency to the local gravity anomaly along reflection survey lines and at outcrops. Since gravity anomaly around Japan is well studied, this method is effective especially for the regrion where few underground surveys are conducted. We apply this method to construct 3D underground model around the epicentral region of the 1997 Northwestern Kagoshima prefecture earthquake. Three dimensional finite difference method with this 3D underground structure model simulates the observed records better than that with simple 1D underground structure model.
収録刊行物
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- 日本建築学会構造系論文集
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日本建築学会構造系論文集 65 (533), 75-82, 2000
日本建築学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282680615053568
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- NII論文ID
- 110004091138
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- NII書誌ID
- AN10438559
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- ISSN
- 18818153
- 13404202
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- NDL書誌ID
- 5412849
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可